This Whoopie Pies recipe makes tasty mint chocolate cookies that have been a popular dessert for a long time! They’re easy to make and your whole family will love them!
2/3 cup butter or margarine, softened
1/2 cup sugar
1/2 cup brown sugar, packed
1 egg
1/4 cup milk
2 cups flour
3/4 cup baking cocoa
1 tsp. baking powder
1/2 tsp. baking soda
1/4 tsp. salt